Hohentwiel Fortress
Towering above the town of Singen on the summit of an extinct volcanic cone, Hohentwiel Fortress is one of the largest and most spectacular fortress ruins in Germany. Its dramatic location has made it a landmark of the Hegau region for centuries, while the panoramic views from the summit stretch across Lake Constance, the Alps, and the surrounding volcanic landscape. The history of Hohentwiel reaches back over a thousand years. The site developed into a fortified residence of the Dukes of Swabia during the 10th century and later became an important Württemberg state fortress. Its strategic position on a steep volcanic mountain made it exceptionally difficult to capture, helping it withstand numerous military threats throughout its long history. Today, visitors can explore the extensive ruins spread across several levels of the mountain. Among the most impressive remains are the mighty defensive walls, gates, bastions, barracks, and the former Princely House. Walking through the fortress reveals the scale of what was once a self-sufficient military stronghold, complete with residential quarters, storage areas, and defensive structures designed to protect its inhabitants.
Singen Germany
Hohentwiel Fortress stands on a steep volcanic cone above the town of Singen in Baden-Württemberg, at Auf dem Hohentwiel 2a, 78224 Singen. This vast ruined stronghold is one of the largest fortress ruins in Germany and sits in the Hegau region not far from Lake Constance, with wide views that stretch across the hills to the lake and the Alps on a clear day.You can explore the extensive walls, casemates, and courtyards at your own pace, and there’s an information center near the parking area with displays on the site’s long history. Paths wind around the mountain through nature reserves, and the town of Singen lies right at the foot of the hill with its own museums and parks. Nearby volcanic hills like Hohenkrähen offer more short walks, while Lake Constance is only a short drive away. It’s a spacious, open place where the old ruins, the sweeping views, and the surrounding countryside invite a slow, easy visit.